Mottled Houdans
Mottled houdans are a rarer breed of chicken. They have a top knot and 5 toes. I only have the one right now, and I think it is a rooster.
Appenzeller Spitzhauben
This is another breed with a top not. It is also mottled, but tends to be more white than black. I think the one I have is a hen.